Evidence map›Paper›PMID 9607936›Full record

ArticleThe Journal of general physiology1998

HERG-like K+ channels in microglia.

W Zhou, F S Cayabyab, P S Pennefather, L C Schlichter, T E DeCoursey

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of general physiology, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
2.5field-weighted citation impact, top 10% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

32 citing papers in PubMed, 85 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Review
  5. An Overview ofFrontiers in cellular neuroscience · 2018
    Review
  6. Article
  7. Hysteresis in voltage-gated channels.Channels (Austin, Tex.) · 2017
    Review
  8. Review
  9. Article
  10. Article
  11. hERG channel function: beyond long QT.Acta pharmacologica Sinica · 2013
    Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 1 institution in 1 country.

W ZhouDepartment of Molecular Biophysics and Physiology, Rush Presbyterian St. Luke's Medical Center, Chicago, Illinois 60612, USA.
F S Cayabyab
P S Pennefather
L C Schlichter
T E DeCoursey
University of Toronto · CA

Funding

TRAINING IN CELLULAR SIGNALLING IN THE CARDIOVASCULAR SYT32HL007692 · NHLBI · UNIVERSITY OF ILLINOIS AT CHICAGO · PI SOLARO, R JOHN · 1990 to 2014
$8.5M
VOLTAGE-GATED PROTON CHANNELS IN ALVEOLAR EPITHELIUMR01HL052671 · NHLBI · RUSH UNIVERSITY MEDICAL CENTER · PI DECOURSEY, THOMAS E · 1995 to 2003
$1.3M
NHLBI NIH HHS HL-52671NHLBI NIH HHS R01 HL052671NHLBI NIH HHS T32 HL007692NHLBI NIH HHS T32-HL070692
6 · The paper itself

Abstract

A voltage-gated K+ conductance resembling that of the human ether-à-go-go-related gene product (HERG) was studied using whole-cell voltage-clamp recording, and found to be the predominant conductance at hyperpolarized potentials in a cell line (MLS-9) derived from primary cultures of rat microglia. Its behavior differed markedly from the classical inward rectifier K+ currents described previously in microglia, but closely resembled HERG currents in cardiac muscle and neuronal tissue. The HERG-like channels opened rapidly on hyperpolarization from 0 mV, and then decayed slowly into an absorbing closed state. The peak K+ conductance-voltage relation was half maximal at -59 mV with a slope factor of 18.6 mV. Availability, assessed by a hyperpolarizing test pulse from different holding potentials, was more steeply voltage dependent, and the midpoint was more positive (-14 vs. -39 mV) when determined by making the holding potential progressively more positive than more negative. The origin of this hysteresis is explored in a companion paper (Pennefather, P.S., W. Zhou, and T.E. DeCoursey. 1998. J. Gen. Physiol. 111:795-805). The pharmacological profile of the current differed from classical inward rectifier but closely resembled HERG. Block by Cs+ or Ba2+ occurred only at millimolar concentrations, La3+ blocked with Ki = approximately 40 microM, and the HERG-selective blocker, E-4031, blocked with Ki = 37 nM. Implications of the presence of HERG-like K+ channels for the ontogeny of microglia are discussed.

Indexed as

Cation Transport ProteinsDNA-Binding ProteinsPotassium Channels, Voltage-GatedTrans-ActivatorsAnimalsCells, CulturedElectric StimulationElectrophysiologyERG1 Potassium ChannelEther-A-Go-Go Potassium ChannelsHumansIon Channel GatingKineticsMembrane PotentialsMicrogliaPatch-Clamp TechniquesCation Transport ProteinsDNA-Binding ProteinsERG1 Potassium ChannelERG protein, humanEther-A-Go-Go Potassium ChannelsKCNH2 protein, humanKCNH6 protein, humanPotassiumPotassium ChannelsPotassium Channels, Voltage-GatedTrans-ActivatorsTranscriptional Regulator ERG

Identifiers

PMID9607936
PMCPMC2217149
OpenAlexW2142820562

What OpenQuestion holds

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LicenceCC BY-NC-SA
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.